I have given up listening to the radio for Lent. I like to listen to Radio 5 whilst shaving, Radio 2 on the way home (Simon Mayo) and Radio 4 on a Thursday morning on the way to my 9.30 meeting (In Our Time - it justifies the licence fee on its own).
This penance has been worth it, thus far. The silence leads to prayer, or rather in the car listening to Allegri's Miserere and learning to sing and pray it.
Give up the aural wallpaper. You'll not regret it.